Molecular Nutrition

Effects of Botanical Polysaccharide on Growth Performance and Intestinal Environment of Weaned Piglets

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  • College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China

Received date: 2018-02-03

  Online published: 2018-07-20

Abstract

This experiment was conducted to investigate the effects of Astragalus polysaccharides (APS), Atractylodes macrocephala polysaccharides (AMP) and Achyranthes bidentata polysaccharides (ABP) on growth performance and intestinal environment of weaned piglets. A total of two hundred and fifty-six 35-day-old Duroc×Landrace×Yorkshire crossbred piglets were randomly divided into 8 groups and each group had 4 replicates with 8 piglets per replicate. A 2×2×2 factorial trial with three factors of two levels each was conducted and the amount of APS, AMP and ABP were added at dosage of 0 and 800 mg/kg for 28 days. The results showed as follows:1) adding alone or combined with any two of APS, AMP and ABP tended to increase the average daily gain of weaned piglets (P>0.05), and the combination of three kinds of polysaccharides could significantly improve the average daily gain of weaned piglets (P<0.05). There were no significant differences in the ratio of feed to gain among all groups (P>0.05). The polysaccharide supplementation could significantly reduce the diarrhea rate of weaned piglets (P<0.05), importantly there was a certain interaction effect between polysaccharides. 2) Compared with the control group, the pH in ileum and rectum contents of weaned piglets fed diets supplemented with alone or combined with any two of polysaccharide had no significant change (P>0.05), but the pH in cecal and colon contents was significantly decreased (P<0.05), and it was worth mentioning that the combination of three polysaccharides had an interaction effect on the pH of cecal content (P<0.05). 3) Compared with the control group, the contents of total volatile fatty acids in the caecum contents of weaned piglets in alone or combined with polysaccharide groups were significantly increased (P<0.05), and the combination effect of the three polysaccharides was significantly higher than that of the single polysaccharide (P<0.05). 4) Adding alone or combined with APS, AMP and ABP significantly increased the numbers of intestinal Lactobacillus and Bifidobacterium of weaned piglets (P<0.05). At the same time, although groups adding two kinds of polysaccharides had an increasing trend to the numbers of intestinal Lactobacillus and Bifidobacterium compared with groups adding with one kind of polysaccharides, the difference was not significant (P>0.05). The number of Escherichia coli in intestinal tract of groups adding with one kind and two kinds as well as three kinds of polysaccharides was significantly decreased (P<0.05). It is concluded that the addition of APS, AMP and ABP in the diet can improve intestinal environment, decrease the diarrhea rate and thus improving the growth performance of weaned piglets, and the combination effect of three polysaccharides is the best.

Cite this article

XIE Hongbing, ZOU Yun, LIU Lili, YANG Yongsheng, HE Jianhua . Effects of Botanical Polysaccharide on Growth Performance and Intestinal Environment of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2018 , 30(7) : 2662 -2671 . DOI: 10.3969/j.issn.1006-267x.2018.07.026

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